The Aero Precision M4E1 Threaded Upper Receiver FDE is a marvel of engineering, crafted with a new angular machined design that sets it apart from standard mil-spec upper receivers. Forged from 7075-T6 Aluminum, it boasts a precision-machined body compatible with all mil-spec AR15 parts, ensuring seamless integration and superior performance. This model includes a port door and forward assist pre-installed, making it a reliable choice for any AR15 build.

Ideal for range time and training, the M4E1 Threaded Upper Receiver is perfect for custom AR15 builds. Aero Precision is renowned for its innovative designs and commitment to quality, making this upper receiver a top choice for enthusiasts.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1 Threaded Upper Receiver
- Finish Color: Magpul FDE Cerakote
- Material: 7075-T6 Aluminum
- Unique Features: Enhanced forging for a "billet look"
- What's In The Box: Port door and forward assist pre-installed
- Weight: 8.65 oz